Trolley



(No Model.)

W. LE R. EMMBT. TROLLEY.

No. 417,998. Patented Dec. Z4, 1889.

` UNITED STATES PATENT OFFICE.

VILLIAM LE ROY EMMET, OF VIOHITA, KANSAS.

TROLLEY.

SPECIFICATIONnforming part of Letters Patent No. 417,998, dated December24, 1889.

Application tiled September l2, 1889. Serial No. 323,743. (No model.)

To a/ZZ whom, it may concern:

Be it known that I, VILLIAM LE ROY EM- MET, a citizen of the UnitedStates of America, residing at Wichita, in the county of Sedgwick andState of Kansas, have invented certain new and useful Improvements inTrolleys, of which the following is a specification, reference being hadtherein to the accompanying drawings.

This invention relates to certain new and useful improvements introlleys for electric cars for making contact with an overhead wire.

The invention has for its object to provide an improved trolley whichshall be strong and efficient, capable of production at a minimum cost,and providing for the automatic lubrication and the ready assemblage ordisconnection of the parts.

The invention is clearly illustrated in the accompanying drawings,which, with the letters of reference marked thereon, form a part of thisspecification, and in which- Figure l is a vertical section through atrolley constructed in accordance with my invention. Fig. 2 is avertical section through the same at a right angle to the plane uponwhich the section in Fig. 1 is taken.

The novelty in the present instance resides in the peculiarities ofconstruction and the novel combination, arrangement, and adaptation ofparts, all as more fully hereinafter described, shown in the drawings,and then particularly pointed out in the appended claims.

Referring to the details of the drawings by letter, A designates thepole or stem, which is designed to be secured in any well-known mannerto the pole or rod which extends from the top of the carin the usualmanner.

B B are plates of metal secured at their lower ends tothe upper end ofthe stem A in any suitable manner, preferably by means of rivets a,which may serve as a connection for the wire which might connect withthe car to complete the circuit.

C is a tubel of suitable size, clamped or otherwise secured between theplates B, as shown in Fig. 2, by means of the transverse bolt D,provided at one end with an eye b, to receive the end of a rope E, andat the other end screw-threaded, as shown at c, for the reception of anut d.

F are disks or circular plates arranged within the tube or sleeve O, andserving to close the ends thereof. They are provided with suitable holesfor the passage of the bolt D. These disks or plates are secured to theplates B by means of bolts or rivets c, as shown clearly in Fig. 2.

Gis a sheave surrounding the sleeve or tube O, and of slightly lesslength than the space between the plates, so as to allow of freemovement of the sheave. This feature is clearly illustrated in Fig. 2.

H is an opening through one end of the tube-head or disk, said openingalso extending through the adjacent plate, as shown in Fig. 2, toprovide communication with the interior of the tube, which tube, withits heads, forms an oil-receptacle, for a purpose hereinafter described.

In the wall of the tube or sleeve C are small openings f, through whichthe lubricant within the oil-receptacle passes to the insidebearing-surface of the roller or sheave.

The tube or sleeve C forms the axis on which the roller or sheaverevolves. The axle or axis thus beinglarge, the motion of the roller isnot necessarily very free, but willbe found sufficient to distribute thewear of the Wire evenly over the whole periphery of the roller. Theouter peripheryof the roller is preferably grooved, as shown in Fig. 2,the said external grooved surface making contact with the wire on whichit is designed to travel, and causing the roller to turn as the caradvances.

The upper ends of the plates B extend beyond the periphery of the rolleror sheave, and serve as guides to prevent the wire from ruiming off theroller, the said plates at their edges being rounded orflared, as shownin Fig. 2, to avoid catching on or scraping the wire.

A trolley constructed as above described can be made very light, yetstrong; the parts which are exposed to wear can be easily replaced; itrequires little or no care; the lubrication is always sure and perfect;the Haring of the flanges prevents them from catching on excrcscences onthe wire; the guides, being stathe Whole device allows of any transversewires with which it may come in contact to p tionary in relation to theroller instead of being a part thereof, serve Very efficiently, and

slip freely over without catching.

In practice I may place the lubricant di- I rectly within the chamber orreceptacle formed by the tube or sleeve and heads; but it is preferableto place within the chamber p some absorbent materiale-as cotton-wasteorthe like-to absorb the lubricant.

Vhat I claim as new is- 1. The combination, with the iixed plates, of atube held between said plates anda contact-roller on said tubeindependent of the' plates and free to revolve on the tube,substantially as described. l

2. The combination, with the fixed plates, of the'tube held between saidplates and hav- 1 ing its wall provided with openings, as shown, and theroller on the tube free to -re'volve thereon independent of the plates,substantially as described.

3. The combination, with the tube and the roller thereon, of the fixedplates holding the said tube and extended upward above the rollerindependent thereof, as set forth.

4. The combination, with the ixed plates having their upper edgesflaring, of the tube 5 held between said plates and the roller on thetube independent of the plates, substantially as described.

5. The combination, with the fixed plates, the tube held between saidplates and the disks within the tube at the ends thereof, of thetransverse pin and the roller on the tube independent of the plates,substantially as described.

6. The combination, with the plates fixed to the stem, the tube heldbetween said plates,

and the disks secured to the plates, of the roller on the tubeindependent of the plates, and the transverse pin passed through theplates and disks and provided with a nut, substantially as described.

7. The combination, with the stem and the plates fixed thereto, ofthetube held between the plates, the roller free to turn on the tubeindependent of the plates, the disks in the tube, the transverse pin andthe nut thereon, the wall of the tube having perfor-ations, and alling-aperture through one disk, and the ad jacent plate, substantiallyas and for the purpose specified.

In testimony whereof I aix my signature in presence of two witnesses.

WILLIAM LE ROY EMMET. Witnesses:

O. E. WELLER, A. E. HELM.

